pv.html

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="utf-8">
	<title>GitHub/Gist &amp; BitBucket HTML Preview</title>
	<style>
	body {
		font: 12px 'Helvetica Neue', Helvetica, Arial, freesans, clean, sans-serif;
		color: #333;
	}
	h1 {
		font-size: 20px;
	}
	a {
		color: #666;
	}
	#previewform {
		display: none;
		padding: 20px; 
		text-align: center;
	}
	strong {
		color: #333;
		background-color: #FAFFA6;
		padding: 0.1em;
	}
	#footer {
		margin: 20px 0;
		font-size: 10px;
		color: #666;
	}
	</style>
</head>
<body>
	<form id="previewform" onsubmit="location.href='/pv.html?'+this.file.value;return false">
		<h1>GitHub/Gist &amp; BitBucket HTML Preview</h1>
		<p>
			Enter URL of the HTML file to preview:
			<input type="url" id="file" value="" placeholder="e.g. https://gist.githubusercontent.com/oaustegard/a1902d995b5c6157a9eaf69afa355723/raw" size="60" autofocus>
			<input type="submit" value="Preview">
		</p>
		<p>or prepend to the URL (with or without the protocol handler): <code><strong>http://htmlpreview.github.io/?</strong>gist.githubusercontent.com/oaustegard/a1902d995b5c6157a9eaf69afa355723/raw/helloworld.html</code></p>
		<p id="footer">Developed by <a href="https://github.com/niutech">niu tech</a> | Contribute on <a href="https://github.com/htmlpreview/htmlpreview.github.com">GitHub</a></p>
	</form>
	<sub><a href="https://github.com/htmlpreview/htmlpreview.github.com#license"><b>License</b></a> © 2019 Jerzy Głowacki under Apache License 2.0.</sub>
	<script src="/scripts/htmlpreview.js"></script>
</body>
</html>